The biggest issue I have with the new wide layout is not how the flash is displayed, but how the comments and text are now. I feel that its now spread out way too much, so its a little more tiresome to read.. Sites like Youtube and Deviantart keep their text contained within a small column even though their main content is quite large.
The best thing about it all though isn't particularly the wide aspect... but the fact flash movies are now in-line. I feel like thats something we've needed for ages... We could perhaps promote keeping the site tidy though, by emphasising the use of preloaders, and/or perhaps providing authors with a greater range of them?
Keep up the good work!